Hi,
I have a 2006 Focus ST and I've noticed slight (maybe 2/3 mm) steering wheel wobble at between 65 and 75 MPH, I had the wheels balanced and found the front wheels were buckled so I bought 2 brand new wheels thinking it would solve the problem but it didn't, the wobble is still there with the 2 brand new 18 inch wheels. The car does not drift nor does it pull to either side under braking; the steering wheel appears central to me and the only other behaviour I've noticed is a decrease in tyre noise when the steering wheel is turned to the left slightly (by less than 20 degrees).
I'm not sure what to try next to cure the wobble; would tracking / alignment / geometry setup be a possible cause for the wobble or should I look elsewhere first, such as a more accurate balancing, I thought replacing the buckled front alloy wheels with known straight wheels would cure the problem, obviously I was wrong. Any other suggestions?
Thanks,
James.